malcher



o. MALCHER.

CALCULATING MACHINE. urucimou men um. ms.

Patented Oct. 14,1919.

3 SHEETS-SHEET I 0. MALCHER.

CALCULATING MACHINE.

AHLICATION FILED m4. 1. m5.

0. MALCHER. J

cucuunns inacmue.

APPLICATION FI LED MN- I. I915.

Patented Oct. 14; 1919.

s-su 0. MALCHER.

CALCULATING MACHINE.

APPLICATION FILED MR5? I915- ,3 18,397. Patented Oct. 14, 1919.

B. SHEETS-SHEET OfMALCHER.

cucumma momma;

APPLICATION FILED JAN- 7. |9l5.

1,318,397. Patented 00th 14,1919.

8 SHEETS-SHEET 5.

. o. M ALCHER. CALCULATING MACHINE.

arrucmou men Mild. m5.

Patented Oct. 14,1919

- 8: SHEETS-455E! 6- n 55 6 Luz/Zambia; WW /MI 0. MALCHER.

CALCULATING MACHINE.

arrucmou men m1. 1. ms.

8 SHEETS-SHEET I.

0. MAL CHER. CAjCULATING MACHINE. AFPLICATIQN FILED MN. I. ISIS- 1,318,397. Patented 0ct.14,1919.

I SHEETS-SHEET B.

: ammnmgim r tion on line forth in the appended claims.

for the sett UNITED STATES PATENT OFFICE.

O'I'TO MALCHER, OI CHICAGO, ILLINOIS, ASSIGNOB 1'0 MAI-CHER.

COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF cnncmrmc-macnnm.

Specification of Letters Patent. Application filed January 7, 1915. no.

To all whom it may concern Be it known that I, O'l'ro Mancnnn, a citizen of the United States, residing at Chicago, in the county of Cook. and State of Elinois, have invented certain new and useful Improvements in Calculatin -Machines, of 'which the following is a specification.

This invention consists substantially in the and arrangement hereinafter the accompanyparticularly set combination described and illustrated in ing drawings, and more In the drawings: Figure 1 is a lo invention taken on 'tudinal section of line 1-1 of Fig. 2.

Fig. 2 is a sectional plan view of my invention taken on line 2-2 of Fig. 1.

Fig. 3 is a line H of Fig. 2.

Fig. 4 is a fragmtlsrntagy longitudinal'sec- Fig. 5 is an elevational view of a part of a mechanism for setting the machine in adding, subtracting and non-calculating qpositions.

Fig. 6 is of Fig. 5.

Fig. 7 is a sectional of Fig. 5.

Fig. 8 is 9. tion showing the totalizer and automatic clearing devices. T

ig. 9 is a sectional elevation on line 9,9 of Fig. 10;

Fig. 10 is a fragmentary total zer mechanism and au de'vices.

Fig. 11 is a fragmentary view on line 11-11 of Fig. 8, some of the parts being} shown in elevation.

Fig. 12 is a fragmentary sectional elevation on line 1212 of Fig. 8.

Figs. 13 to 19, inclusive, are detail perspectives of some of the parts of the inven- Fig. 20 is a longitudinal section on line 20-20 of Fig. 2.

Fig. 21 is an enlarged fragmentary sectional view showing the lock for theautoa sectional elevation on line 6-6 plan view of the Fig. 22'is an e1.

mg m Fig. is a section on line 23-23 of 23 Fig. 21.

transverse sectional view on plan view on line 7 7 I fragmentary sectional eleva tomatic clearing Fig. 24 24 2 4 of in mech Fig. 26

Fig. 27 Fi 26.

'g. 28 isa section on] 26:, showing the totali resent invention ard, a reversible drive shaft, two

m nism, and

"crating parts.-- In calcu numbers are set up operated by the reci tent of. movement 0 by the' particular keys tent of movement of th printed by th automatica ing from the tomatic clean variou latmg o IS a plan view of a of totalxzerfor use with this i is a section on line 27*27 of ine '28 28 of zer in subtracttotalizer, a racks 'for operating said total x secondary ADDING MACHINE ILLINOIS.

" Patented Oct. 14,1919.

is a fragmentary section on line Fig. 4.

F g. 25 is an enlarged detail of the lockanism for the printing hammers.

modified form nvention.

. a 1g. 29 is a section on line 2929 of machine constituting the comprises a flexible keyplurality of izer, a. main drive shafts, printing mechanism, automatic clearing s accessories and o perations, t e

on the key-board and totalizer is rocating racks, the exthe racks b be added 0 are set up on the key-board, the reciprocating racks tothe totalizer, and

e printing after a com Iete calculation, y cleared of the calculation by shifting the aukey and recipro main operating handle.

Key-board.

The key-board of the a; flexible or self-correct: is; if it is desired after-a mg a k insertion by depressing made' by depress same decimal order, the

ily inde 1e key-b eing limited depressed, and the exe totalizer depends the racks.

mechanism the The racks board, and transferred to thetotalizer. The r subtracted transferred b mechanism and the totallzer is num pendent of the ber resultcating the present invention is ng key-board, that n insertion has been ey. to make another another key in the The machine com rises a base-plate 10, and a casing 11. ransverse'bars 12 and 13 extend across the casin ,and supforted b the bars 12 and 13 are -shaped rames 1 porting the keys 15 of each actor decimal order. Extending across the top of each of the U-shaped members 14 is a bar 16 having openings therein, through which the keys are mounted to slide, the lower ends of to keys being fitted in openings in the bottom portion of the bar 14. Thekeys are normally held in their upper position by means of springs 17, there being a sprm attached to each key, and the upper en of s rings being attached to a bar .18 extending tie full length of the U-shaped member 1 as shown in Figs. 1 and 4. A pivoted locking bar 19 is carried by each U shaped member 14, as shown in Fig. 1, and is adapted to be swung inwardly to engage notches in the edges of the keys 15 by a spring 20. When a key is pressed downwardly, it is held in ts lowered position by the locking bar 19, which enters a notch in the key. If, while a key is held in this lower position, another key in the same decimal order is depressed, the barv 19 is .swung outwardly by the second key, to. release the first, in amanner well knowninthe art. When a key is depressed, its lower end protrudes through the bottom portion of the bar 14 into a position to intercept the forward movement of the reciprocating rack for the particular decimal order -in which the key is depressed. The point at which the forward movement of the rack is arrested depends-upon which of the keys of the particular unit is depressed. Each decimal unit is provided with one key for each of the nine di its, and if the key representing a particu ar digit', three, for instance, is depressed, the rack will move just far enough to rotate its totaiizer wheel three digits, as will be later explained. Secured to the ivot which carries the inner end of the 10 "ng bar 19, as shown in Fig. 1, is alock 21., which, lies in t \e path of movement of a lag on the corresponding reciprocating rack to prevent any movement of the rack prior to the de pression of oneof the keys, as will be later explained. As the construction of the keyboard forms no art of the present invention, but is descri ed and claimed in my coending application, Serial Number 825,782,

urther description is thought to be'unnecessary. R k

cm a.

A reciprocating rack 22 is provided with each decimal order, as shown In Figs. 1 and 2. These racks carry a series of lateral proje'cting lugs 23 ads ted to contact with the depressed end of tie keys 15 to arrest the forward movement of the rack. The racks are normally drawn forwardly by springs for sup-.

8, to provide a bi rior to the depression of any key,

24, and are held in their rearwardposltion by locks 21 and by the lockin -bar 25, as will be more fully explained. ach rack 22 is elf-set upward 21, as shown in Figs. 1 and urcated upper end 26 (see Figs. 1, 8 and 13). The bifurcations 27 and 28 of the rack 22 carry gear teeth 29 and 30 respectively. These gear teeth are adapted to be brought into operative relation with a pinion for operating the totalizer, as will be explained. Pro'eotmg laterally from the lower-portion 02 each rack is an extension 31 shown in Fig. 1, for operating the printing mechanism. The extensions 31 are offset inwardly, as shown inFig. 2, for pur nism.

. Drive shafts.

Mounted in the side members of the machine and extendin transversely thereof, are threedrive-sha ts, 32. 33 and 34, as shown in Fi 1, 2 and 4. Loosely mounted on the she t 32 outside of the casin as shown in Figs. 2 and 24, is a hand-cran 35, and loosely mounted on the same shaft 32, but within the casing, is a bell-crank 36" shown in Figs. 2 and 4 and extends through a slot 36" in the casing, and connects the crank 35 with the bell-crank 36 to rotate therewith, the slot in the casing limiting the movement of the crank toa quarter turn. -A spring 37, shown in Figs. 2 and 4, is connected to the lower arm of the bell-crank 36, and holds the bell-crank 36 and the hand-crank 35 in the position shown in these figures. Fastened to the pin 36"tomtate with the bell-crank 36, are'two pawls 3B and 39. The pawl 38 contacts with a ratchet member 40 secured to the shaft 32 to rotate said ratchet member when the bellcrank 36 moves to the left, as viewed in Fig. 4. A ratchet member 41 is mounted on a collar 42, which is free to turn on the shaft 32. A r wheel 43 is loosely mounted on the she t 32, but is connected withthe collar 42 to turn therewith. A gear wheel 44 is secured to the opposite. end of the shaft 32 to rotate therewith. Itwvill thus be seen that when the hand-crank 35 is ulled forwardly or to the left in Fig. 4, it will carry the pawl 38, and rotate the shaft 32 a quarter of a turn in that direction. When the handcrank is released, the spring 37 will return it to its upright or original position, at the same time carrying the pawl 39, together with its ratchet member and the gear 43 a quarter of a revolution to the right, as viewed in Fig. 4. 'Pawls 45 and 46 are adapted to preventreturn motion of the cam members 40 and 41, respectively. Rigidly secured to the shaft 34 is a pinion 47. having a ar ratio of l to 4 to the gear 43, so that tie shaft 34 is given one complete revolution at each return stroke of the crank 24. A pin 36 35. Secured to thesh'aft B3 lea pinion 48 in mesh with the gear 44, and having the pro er ratio to the gear 44 to rotate the sha t 33 one complete revolution at each forward motion of the hand-crank 35.

Rad: lock and release. I

.Pivotally mounted on a shaft 9 which extends machine are two levers 50fand 51, shown n Figs. 1,

ing through slots in the rack-bars 22, and the bar 52 extending across the key-board'in position to contact with the uiper edgesiof the locking bars 19. .The rac ends of the slots, and the bar 25 is ada ted to contact with the shoulders form by these notches to hold the their rearward position a ainst the' action of the springs 24. Carrie by the shaft '33 are two cam members 54, and 2. The n points 55 adapted to contact with the cam members 54, and normally lie in a depression in said cam members when the bar '25 is in position to lock the racks 22 in'the rearward position. Upon rotation of -the' shaft 33 with the cam members 54, the contact points 55' are pushed upwardly, thus rocking the levers 50 and 51 to bring the bar 52 into contact with the bars 19, to hold the bars 19 in the lower position, and prevent operation of the keys 15, at the same time moving the bar 25 out of the notches '53, and releasin the rack-bars 22 to move forwardly. It will thus be seenthat during the forward motion of the rack-b ars, the keys 15 are all looked in place. The forward is arrested by the articular key that has been depressed in the decimal order corresponding with each been depressed in any decimal order, the lock 21 will retain the rack for that order in its retracted position and no movement of the totalizer for that order will be made. In decimal orders where keys have been depressed, however, the locks 21 will have been moved out of contact with the racks by the movement of the bars 19 caused by the depression of the keys; and in these orders the racks will move forwardly when released by the levers 50 and 51, until stopped by the particular keys depressed, to operate the totalizer units.

Totalieer.

The totalizer used in the present invention is what is known as a reversible totalizer, that is, it may be set either for addin or subtracting operations. Foreach decima .order a totalizer unit is provided, and is to be operated by the placed in position rack for the corresponding decimal order.

' ofthe totaliner' unit are all transversely of thef frame of f the I 2 and 4. Connecting the lovers 50 and 51 are bars 25 and 52, the bar 25 extend-.

-bars 22 are. provided with off-sets or notches 53 at the pinion 57 into three rack-bars 22 in shown in Figs. ,1'

levers 50 and 51'have' contact in "Fl 8, and

motion of the racks':

rack. If no key has the shafts 56 totalizer unit.

Each totalizer unit' is mounted torifroa rotation on a short shaft 56, endocm rises a ten-tooth pinion 57, an automatic clearing wheel 58, a number-wheel 59, a carrying gear 60, and -a star-wheel 61, as shown particularly inFig. 11. These parts held rigidly together .to rotate in unison. The short shafts 56 a l-amounted for sliding motion lithe p'iiiommembers 62, shown in Figs. 1 and18. The pinion members. 62 are carried by. abar 63, which extends across the frame of the machine, (See Figs; J8 and '10). These pinion members 62 are provided with slots 64 and 65, each slot 64 ,i g adiaoent ends of short shafts 56 of two totaliaer units,'as ,showninFig. 11. rThe bar 63 'is adapted to ,bsslid vertically to .move the different positions, by mechanism thatwill be later explained. In the central position, as shown in Figs. 8 and; 11, the gear '57 is entirely-out of .con tact with the bifurcated ends'of the rackbar22. For adding operations, thebar 63 ismovedupw'ardlv until the in contact: with t e upper bifurcation 27. In this position, when the rack-bar moves forwardly, the 'gearj lis rotated to the left,

t ieilumerals on the numeralwhee 5 9 are moved in the adding direction, that is, in1thedirection to bring numerals of a higher, value into-the upper. or sight 'position'on the machine. When' the bar 63 is depressed, and the rack 22 moved forwardly, the numeral wheel 59 is'rotated in the opposite'or' subtracting direction, since theracli, in this sition, is in contact with the lower, ins of the upper side of the pinion 5 7. Extending across the machine in the same horizontal plane as the central position of the shafts 56*is'a fixed shaft 66. livotally mounted on the shaft 66 are plates 6 which extend forward] therefrom, and have circular openings 1n which are carried, as shown in Fi 9, 10 and 11. There are two bars 67 or eachtotalizer unit, and these bars are con nected together at one end by spacers 68, and at the other by spacers 69. The lates 67 and s acers 68 and '69 form in of ecta rectangu ar box, which controls the position of the totalizer unit longitudinally of'the machine, but leaves it free to move vertically about the shaft 66,'as a pivot. Pivotally :mounted on one of the plates 67, as shown in Figs lever, 70, having a projection 71 adapted'tll enter notches in the star-wheel 6;, whenever the totalizer unit is in its central position. This, is to prevent accidental rotation of the A' spring 72 normally tends to hold the lock 70. away from the starwheel 61, and the lock is ressed into contact with the star-wheel y the latch operating member 73. This member 73 is esrmisomes' Ono-tooth pivotal! carried on the s aoer 69 and has a lo 7 extcndin into a slot 65 in the mem lei; 62. 0n tie end of the member 78 opposite the log 74 are two notches '75 and 76, and a projection 77. In its central position the projection 77 engages a corres 0nding arojection 78 onthe lock '70,;and olds the lock in position against the star-wheel 61. When the bar 63,.is moved upwardly, it carries with fitthe' lug 7 4. At the same" time the smear 69 also moves upwardly more rapidly than the lug 74, since the spacer '69 swings about the shaft 66 as a pivot, being carried by the late 67 which acts as a radius-arm, and a point 56 nearer the center than 69, which moves u wardly at the same rate as the In 74. T is relative movement of the oints g4 and 69 moves the notch 75' upward y into position to receive the PIOjGOlJOHTQWhBH the gear 57 has come into contact with the up or bifurcation 27- of the rack 22. Similar ,.when' the bar 63 is moved downwardly, t e notch 76 comes into contact with the projection '78, and frees the star-wheel 61 from the lock 70. It

' will thus be seen that in both the upper and to rotats,'but in its central sive, a single rack 28 the vertically lower positions of the totalizer mec amsm, positions, it is free or non-calculatit is positively held against acci ental rotation. In the modified form of totalizer shown in Figs. 26 to 29 incluis used in place of the bifurcated rack reviously described. In thisform of tota izer a second pinion200 is held in mesh with the pinion 57 by means of a link 201. The link 201 is pivotally mounted on the shaft 56, and carries at its opposite end a stub shaft 202 on which the pinion 200 is mounted to rotate. Pivotalg mounted on the spacer member 6,9,whi

connects the side-plates 67, is a link 203.

The totalizer lock operating member '73 is that is, in its operating ing sition,

also ivotally mounted on the spacer 69,-.and'

the lmk 203 is connected to by a pin 204 which has a lug 205, projectm from the end thereof into the s 0t 65 o movable side plate 62. An arcuate slot 206 is cut in the side plate 67 to unit thepin 204 to move therein. It wil be seen that when the bar '63 is moved vertically, it will carry the shaft: 56therewith, as previously described, and wil swing the side members 67 about the shaft 66 as a pivot. When the bar 63 is in central or non-calculating position the spacer 69, the in 204, the stub shaft 202, and the totahzer shaft 56, will all be in horizontal alinement, as shown in Fig. 27. When the bar 63 is moved downwardly as shown in Fig. 28, the pinion 57 will be carried by the plate 62 into contact wlththe rack 28. At the same time the pin 204 will move down.- wardly at the same rate as the shaft 56, becansc of its connection .205 with the plate the member 7 3 decima order I one 'pinion 57 of the l. the shaft 66 are a plurality of v sion spring 86 nuam 62. The npaeer 69 however will be moved aoireater istanee downwar 1;! than the pin 2 since it s carried b the side plates 67 wh ch are pivoted on t e shaft 66. This will throwt e spacer 69 lower than the in 204, and hence will raise the endof the ar 203 opposite the spacer 69'upwardl The bar 203 is bifurcated at 207, an these b furcations occu y .a position on opposite sides of thestubjs aft 202, as shown m Fig. 28. It will hereforelae seen that when the bar 66 s moved to its downward position, the P111101]. 57 will be thrown into contact with the rack 28" and the pinion 200 will be thrown u wardly away from said rack. It willalso a parent t at an n ward movementof the at 63 will raise t opinion 57 outof contact with the rack 28'- andat the same tlme throw the'pinion 200 downwardly into contact with the rack. The direction n which the 'totalizer is rotated by the rack IS thus reversed by shifting the bar 63 to set the totaliner in adding or subtracting position and a neutral position in which the totalizer is out of contact with the rack is also provided. In this form of totalizer the lock for'holding the totalizer when in neutral position, as well as the carrying mechanism and automatic clearing device is the same as in the form of totalizer previously-describedLi I Carrying nwcha/ntsm.

Each of the numeral wheels 59 has on its surface digits from 0 t0-9, so that a com lete revolution .of the numeral wheel ad s or subtracts, as the case may be, ten units of the decimal order which the articular numeral wheel represents. It w 1 thus be'seen that for each complete revolution of a numetal wheel one unit should be added to, or

subtracted. from, the we higher decimal order, according to the 'operation, whether it is addition, or subtraction. In this invention, thisis accomplished by mechanism for rotatin the totaliner unit i the next higher int, by moving the t 0 or along the operating racka s'uflicient distance to produce the desired rotation. This carrying mechanism can best be understood b reference to Figs. 8 9 and 10 inclusive. selv mounted on rings. 79, one foreach totalizer unit. Connecting the sidebars 67 of each totslizer are a plurality of s were or pivots 80, each having mounted t ereon a disk 81, which is free to'rotate on the spacer 80, but is held from longitudinal movement thereon. Carried bythe disk 80 are two pins 82 and 83, the pins of each disk extending through -arcuate slots 84 and 85, respectively, in the plate 67 A ten- 4 connects the spacer 80 with the rmgii'll, and tends to draw the spacer 80 toget er with the plates 67 and the totalizer'unit carried thereby rearwardly or to i theright, as viewed in Figs. 8, 9 and 10.

a The amount of rearward'motion that ean be produced 'by thesprings 86 is limited by the elongated openings 87 in the plates 67, and is ust suflic entto rotate the totalizer mechamsm'o'ne unit when the gear 57'is in con-; tact with the rack-bar 22. 1 The direction of.

rotation will depend upon which bifurcation nects the'rear-ends o the plates -67. A

- 83 that project throu' h the ao'tail iece-94 has exten ed su aces 95 and 96 Pring 91 is fastened atone end to an arm.

92 on the latch-bar 88, and has its other end secured to a plate 93, which extendsacross the machine, and is fastened to'the frame thereof. The bar 88 has a tail member 94, which extends forwardly and rests against the under side of the ends of the lugs 82 and late 67. The

to bear against the lugs'82 and 83, so that, regardless of the plosition of the 1 disk 81 longitudinally of t e machine the lugs 82 and 83 will be in contact at some point along these bearing surfaces. The disk 81 carries a single tooth 97 in position to contact with the tooth 98 of the one-tooth gear 60 carried by the totalizer unit. It will thus be seen that for-each revolution of the totalizer unit, the one-tooth gear 98 will contact with the tooth 97 and partially rotate the disk 81 and cause one or the other of the projections 82 and 83 to press downwardly on the tail iece 94 of the latch 88, and move the latch in opposition to the spring 91 out of contact with the rectangular projection 90, thus freeing the lates 67 and the mechanism carried there y to move rearwardly under the tension of the spring 86. This movement rolls the pinion 57 on the rack-bar 22 a sufficient distance to move the numeral wheel one point. .Thus, for each revolution of a totalizer unit in one decimal position, the totalizer unit in the next higher decimal position is caused to rotate one point, thus carrying one from the lower decimal position to the higher decimal position.. If the machine is being operated to add, the totalizrr unit in the higher decimal position will he rotated one point in the direction to add,

and if the machine is being operated to sub lrart. the totalizer unit in the higher decimal position will be rotated in the subtracting dirortiun. since the gear 57 is in contact with the lower bifurcation of the rack in one lution by gear 43 and pinion 66', n

case, and with the 11 per bifurcation in the 6 other case. Itshoul be noted that the teeth 9? and 98 are so] proportioned that if the to'oth '98 is-in positlon to carry, as shown in- Eigs. 8--al1'id9, when'the racks are released, there is suflicient play. between the teeth to allowthe parts, moved by the racks, to start their-motion and' 'so gain some momentum before the'tooth 98eonmcts with the tooth 97;; lie inslire theoperationof the trapping disk 81 and to prevent the catch 88 from holdin the parts, as might occur if the catch hi to be freed'before any motion at all took place. To further insure easy operation of the catch"88, the catch. is' ivso oted at'66 so that as itis swung upwardly 1 releasing o ration, the angle of the she der 89.wi the 'sduaredlug90 is varied.

- by the swingiilg of the latch about'its pivot,- making h lt'igidly mounted on the shaft 66 are a plurahty of cam members 99 adapted to-coii the releasingoperation an easy on'eJl crate with lugs 100' carried by the plates 6 At the close of each calculating-operation, the shaft 66 will be given a complete revod 4, an the cams 99 will contact with the s 100 to force the plates 67, together widi the mechanismcarried by them, back to their original position, where the will be caught and held by'the latches 88. efore the rotation of the shaft 66, tlie bar '63 will be shifted, aswill be explained, into its central or non-calculating position, and the gears 57 will be out of contact with the racks during this return motion.

Setting mechanism. Mechanism is provided for setting the .machine in adding, subtracting or non-caloulatin position, as the operator may desite. 1113 mechanism will be best'understood from an examination of Fi 2, 3, 5, 6, 7 and 22. Extending longitu inally of the machine, as shown in Fig. 2, is a 'rockshaft 101, which has rigidly attached thereto an operating lever 102, and a gear segment 103. Extending around the shaft 33, as best shown in Fig. 3, are a number of rack-teeth 10-l contacting with the teeth on the gear segment 103. The shaft 103 is free to rotate and also to slide lon itudinally in the frame of the machine. T e pinion 48 carried b the gear 33 is made broad enough so that t e longitudinal movement of the shaft 33 will not disengage it from the gear ll. Carried by the shaft 33 are two cams 105 and 106, each having three cam members. as illustrated in Figs. 3, 5 and 6. The smaller cam member 107 has a rachet tooth 108 projecting outwardly therefrom, which has a short cam surface'109 concentric with the shaft and having the same radius as the plain disk 110. The largest cam 111 has a notch 112 with a short surface 113, of the thereby, the extreme up same radius as the disk 110. By moving the lever 102, any one of the cams 107, 109 or 111 may be brought into position to contact with the teeth 112 carried by the reciprocating plates 113. The plates 113 are mounted to slide vertically on the bars 114 rigidly supported by the frame .of the mac me. a bracket 115 and are resilient y pressed downwardly by springsllfi. Extending forwardly from the plates113 are rigidly connected with the bar 63 to shift said bar vertically. This shifting movement of the bar 63 carries with it the member 62, and the totalizer units carried er position of the bar 63 holdin the tota izer mechanism in contact with t ebifurcation 27 of the rack 22, while the extreme downward position' position. If the shaft 63 is shifted long tudinally to the ri t in Fig: 3, the tooth 112 will ride latera 1y onto 1: e of the tooth 108. If the shaft33 is'now rotated in a clockwise direction, as shown" in Fig. 5, the first result of such rotation the' tooth 108 out of contact with the tooth 112, andallow the plate will be to move 113 to be drawn downwardly under the tension of the spring 116, thus shifting the totalizer mechanism into contactwiththe lower bifurcation of the rack-bar 22. The

mechanism will remain in this position until the shaft 33 has almost made a complete revolution. At the end of the complete revolution of the shaft 33, the tooth 112 will again ride upwardly onto the tooth 108 and the totalizer mec ianism will be restored to its non-calculating position. If the lever 102 is rocked into the o posite or addingthe cam 111 wil be brought into position beneath the tooth 112. If the shaft 33 is now rotated in the same direction as before, the first result of said rotation will be to lift the plate 113 upwardly, thus raising the totalizer mechanism into contact with the upper bifurcation of the rack 22. The totalizer mechanism will remain in this position until the shaft 33 has reached the end of a complete revolution, at which time position,

' the 'tooth 112 will again. be permitted to drop into the notch 113, thus restoring the totalizer to its neutral or non-calculating position. As previously explained, the shaft 33 is given a complete revolution during each forward movement of the hund-cran and it will now be apparent that at the beginning of the revolution of the shaft 33 These plates are held in osition by- -or so tract occurs just as 'shown' in Figs. 4, 5 and 7, are arms 117. These arms surface 109 the totalizer mechanism will be shifted either into the adding or subtracting osition, according to the position of the ever 102, and will remain in this position until the completion of the revolution of the shaft 33, at which'time'it will be restored to its neutral or non-calculating osition. This settin of the totalizer mecianism to add revious to the action of the cam 54, by which the lever 53 is rocked to release the racks 22. Itwill thus be seen that when the racks are, released by'the lever 53, the totalizer mechanism will be in position to contact with the racks to transfer to the totalizer mechanism whatever number is set up on the key-board. A latch member 118 is mounted for sliding movement on the cross-harm, and is resilientl held downwardly by sprin 119. A toot ,120 is carried by the latch '18, and is adapted to enter notchesin the. projection 121carried-by the shaft 101, as shown in Fi 22.-"-The rejection 121. is provided wit three note es to correspond with the three positions of'the lever 102 and cooperate with the tooth 120 to prevent the lever 102 from beingaccidentally displaced from any position in which it has been set.-

Rcck return.

After the operating racks have moved forw'ardl to transfer to the totalizer, the number'w ich has been set up on the key-board, and to set'the printing mechanism, and after the printing hammers have been released to print the number'set, u on the key-board, it is necessa to restore t e racks to their original "tion to be ready for the next calculating operation. The restoration ofthe racks is accomplished durin the final part of the return stroke of the and crank 3 5. As was previously pointed out, the shaft 34 is rotated by the gear 43 .durinfisthe return stroke of the hen -crank 35. shown in Fig. 1 the shaft 34 carries a mutilated gear 122. During the last part of the rotation of the shaft 34 the teeth on this mutilated gear are brought into contact with the rack 123 carried by the frame 124, which is mounted to slide longitudinally of the machine, and

is supported on the shafts 33 and 34 by means of slots 125. As shown in Fig. 2, the frame 124 carries at its forward end a crossbar 126.- Thiscross-bar isin position to contact with the upstanding portion of the rack-bars 22, so that when the frame 124 is moved backwardly by the mutilated gear 122, the bar 126 contactswith the upstanding portion of any of the bars 22 that may have moved forwardly and returns all of the bars 22 to their original position against the tension of the s rings 24. \Vhen the bars are brought to t ieir rear position, the latch bar 25 carried by the levers 53 enters the notch 26 in the bars 22, and thus locks by the key lock release bar to move the lock release bar and release the keys that; were depressed, thus restoring them to the1r upper position to be ready for the next operation. Coacting with shaft 152 is an error key 155, and a repeat key 156, but asthese keys are not a part of the present invention, detailed description of them is deemed unnecessary. r

Automatic clearing nwchanism.

After a calculation is completed, it is necessary to restorethe totalizer wheels to their zero position. In this machine this is shifting the automatic accomplished b clearin lever s own at 127 in Figs-2 and 20, an then moving the hand-crankf'as in a calculating operation. In this machine the clearing operation is accom lished with the totalizer mechanism set in t e subtracting position, and means is provided to shift the totalizer mechanism into this position by the movement of the :automatic clearing lever, in case it is not already in that position. The automatic clearing lever is rigidly attached to the shaft 128, as shown in Figs. 2 and 20.. Rigidly attached to the shaft 128is an arm 129, and a spring 130, which normally holds the shaft 128 in the position shown in Fig. 20. The'shaft is held from further rotation by the spring 130 by means of the arm 131 rigidly carried by the shaft 128. This arm 131, fits into an openin in the slidebar 132,-shown in Fig. 20, an the slide-bar is prevented from movement to the right as shown in that figure b means of the slots 133 and screws 134. Miiunted on the shaft 128 is a cam member 135 shown in Figs. 2 and 21. This cam member is located in position to contact with a pin 136, carried by the shaft 101. It will be seen that when the shaft 128 is rocked by the lever 12?, the cam member 135 will move the pin 136 upwardly, thus rotatin the shaft 101 in the direction to shift the s aft 33 into the subtracting position, if it is not already in such position. Also carried by the shaft 128 are a plurality of catch members 137. One catch member 137 is provided for each totalizer unit.- By reference to Fig. 8, it will be seen that dogs 138 are pivotally carried on the shaftfifi, and

each dog has a projection 139 adapted to cooperate with the latch member 137 to hold said doa in retracted position. Springs 140. shown in Fig. 10 tend to move the dogs 138 'upwardly against the action of the catch 13?. Near the end of the dog 138 is a tooth 158 carried or projection 141 (see Fig. 17). This projection 141 is in position to contact with the p lower bifurcation 28 of the rack-bar, which rotates the totaiizer mechanism with which the projection 141 cooperates. A notch 144 is cut in the automatic clearing wheel 58, in such position that it will be opposite the projection 141 when the zero on the numeral wheel is in the sight position. (See Fig. 8) The parts are so proportioned that when the totahzer is in neutral position, and the do 138 released, the catch 142 will contact wit the teeth 143 to revent the racks'22 from movingforward y, whether the numeral wheel is in zero position or not. If the total.- izerjs in subtractin position, however, and the numeral wheel 1s not in the zero position, the projection 141 contacts with the 20, the arm 131 forces the slide 132 for wardly into contact with the cam surface 144 on theloclr releasing bar 145, shown in Figs. 2 and4. The lock releasing bar 145 is notched on its lower surface, and these notches engage the key-locks 19 (see Fi 1 and 4). It is thus seen that when t e machine is set for automatic clearing the bar 145 will unlock any key that may be pressed down, so that during the clearing operation the racks are free to move forwardly unrestrained by any of the keys of the ke -board.-' It will now be apparent that a er the automatic clearing. key is set the dogs 138 are released to move upwardly under the influence of the springs 140, the.

unit is in zero position when the racks are released, the projections 141 will coincide with the openin 144 of that particular unit, and the catch 42 will be in contact with one of the teeth 143 of the rackcorresponding to that unit.- The rack of that unit will therefore be held from movement, and the numeral wheel of that unit will not be rotated, but will remain in zero position. If, however, a totalizer unit is not in zero posit-ion. the catch 142 will he held out of contact with the teeth 143 because theprojection 141 will rest against the periphery of the automatic clearing wheel 58. As the rack moves forwardly, 'the wheel 58 will rotate until the numeral wheel connected therewith reaches its zero position- As soon as this happens, the projection 141 will enter the notch 144 in the automatic clearing wheel, and the notch 142 will move upwardly into contact with one of the teeth thus arrestin the forwardmovement of the rack, and no urther rotation of the unit will take place. It should be clearly understood that the motion is checked by the catch-142 and the rack-teeth 143, and not by the projection 141 and the automatic clearing wheel. The notch-144 in the automatic clearing wheel is made larger than the projection 141 in order that the motion may be checked by the catch 142 and teeth 143, and not by the clearing wheel and pro ection 141. The notch 144 merely determines the position of the clearing wheel at the time that the forward movement of the rack is arrested by the catch 142. As previously explained, the last result forward movement of the land-crank 35 is to return the totalizer to its neutral position, shifting the pinions 57 out of contact with their respective racks. This occurs during the clearing operation the same as it does during the calculating operations. After the hand crank 35 has been moved to its extreme forward osition, and the totalizer units shifted to t eir neutral posi: tion, the hand-crank is allowed to return under the influence of the spring 37 to its original position. This return movement, as previously explained, rotates the shaft 34 a complete revolution, and returns all of the racks to their retracted position against the influence of the springs 24. To hold the .automatic clearin lever in its forward position during the e caring o eration, a catch lever 146 is rovided, as s lawn in Figs. 2 and 21. This catch lever is pivoted to the main frame at 147, and'carries a tooth 148 adapted to contact with a corresponding tooth 149 carried by the shaft 128. The

lever 146 is resiliently held downwardly by a sprin 150, so that when the lever 127 and shaft 1 8 are rocked forwardly, the catches 148v and 149 are brought into contact to hold the shaft in this position. During the return movement of the hand-crank-35. which rotates the shaft 34, as previously explained, a cam 151 carried by the shaft 34, as shown in Figs. 2 and 21, contacts with the under surface of the lever 146, forcing it upwardly against the tension of the spring 150, and thus releases the shaft 128, which is thereupon rotated by the spring 130 to cause the catch members 137 to contact with the members 139 and withdraw the dogs 138 from their operative position into the position shown in Fig. 8. H At the same time the arm 131 is returned to its original position, withdrawing the slide 132, and allowing the roduced by the key-lock-bars 19 to return to their original position. turn movement of the hand-crank 35 restores all of the parts of the machine to position for a new calculatin operation, and :he totalizer-units are. all eft in zero posiion.

Printing mechanism.

wardly rojecting tail 163 in which there is a 'note 164. A series of dogs pivoted on a transverse shaft 166 is arranged to cooperate with the downwardly rojecting ends 163 of the hammers to hold t em in retracted position. v The lower endof each dog cooperates with a shoulder 167 on one of .the racks 22. Whenthe rack 22 is allowed to move forwardly, as previously explained, the dog 165 is rotated on the shaft 166 sufficiently to disengage .it from the notch 164, leaving the printing hammer free to move forwardly under the influence of its spring, except for the restraining action of the cam 168 carried on shaft 34, as shown in Figs. 2 and 25. As previously explained, the shaft 34 is rotated during the i'etuririuovement of the operating handle and,"as will be seen in Fig. 25, the first result of such rotation will be to free the hammers 162 from the restraining action of the cam 168. Each printing hammer that has been previoufsly released from the dog 16:) will therefore move forwardly at the beginning ofthe return stroke of the operating handle 35 to print the number set up in the printing mechanism. If any rack 22 has not been moved, the corresponding dog 16!) will hold the hammer 162, and no printing will take place in the decimal order corresponding therewith. If, however, a rack of one of the higher decimal orders has been operated. the dog 165 corres ondin r therewlth will release the dogs 0 all tie lower orders. since each dog carries :1 lug 169. which overlaps the dog of the. next higher order. as shown in Figs. 2 and If no number has been set up in the decimal orders in which the dogs are thus released, the printing hammers will print zero in, these orders. .fter the hammers have completed the printing operation, further"rotation of the shaft 6-1 and cam 168 will bring the cam into contact with the tails 163 of the hammers and restore them to the position shown in Fig. '23. The mechanism for setting up in the print- It will thus be seen that the reing device the numbers to be printed may be of any well known and approved t pa. and is operated by the extensions 31 on t e racks 22. As this specific mechanism is not a part of the resent invention, further description thereo is thought to be unnecessary. As shown in Figs. 20 and 21, mechanism 1s provided for shifting the ribbon into a diferent position during the subtracting operation from that which it occu ies during the adding operation. Conn to shaft 101,

' which o crates the' setting mechanism, as

. link 171 and lever 172, shi

' mechanism having parts to be driven in sequence, an operatln handle .arra

. s to. be reciprocated throng an arc of a circle, two

drive shafts for operating the.partsof said computing mechamsmfm sequence, ,means for rotating one of said driveshafts a complete revolution during the movement of said handle, in one direction, and means forrotating the other of said drive shafts a complete revolution during the r'movement of said handle in the other direction, each drive shaft being held stationary during the rotation of the other. I.

2. In a calculating'machine, computing mechanism havin parts to be driven in se quence, a main ve shaft, an operating handle mounted onsaid main drive shaft,

two supplementary drive shafts for operating the parts of said computing mechanism in sequence, means mounted on said main drive shaft for rotating one of said supplementary shafts during the movementpf said handle in one direction, and means operable independently of said aforementioned means and mounted on said drive shaft for rotating the other supplementary shaft during the movement of said operating handle in the other direction, said drive shafts each remaining stationary during the rotation of the other. a

3. In a calculating machine, computing mechanism having parts to be driven in sequence, a main drive shaft and two supplementary drive shafts for operating saidmechanism, means connecting said main drive shaft and said supplementary drive shafts to produce a complete revolution of said snpplenlentary drive shafts at different periods 1n the o eration of said calculating machine, each 0 said supplementary shafts remaining stationary during rotation of the other, means mounted on one of said drive shafts for controlling the calculatin operation of said calculating machine an means mounted on the other of said drive shafts for restoring operatin parts of said calculatingmachme after t e calculating opera- 'tion.

4. In a calculat' shaft, an'operating andle mounted on'said main drive shaft adapted to be reciprocated through an arc ofa circle,- asupplementary machine, a main drive drive shaft, means mounted on said supplementary drive shaft for controlling the calculating operations of said calculating machine, means for'producing a complete r'otation ofsaid supplementary drive shaft during the first moitementof said operating handle, a second supplementary drive shaft, means mounted onfeaid'eecond supplementary .drive shaft for restoring operating parts 'ofsaid-ealculating-machme after a -calculating operation, and means for pro ducing a complete rotation .of said second supplementary drive'shaft during the returnmovement of said 0 rating handle,

said supplementary drive s afts each being hellld stationary during the rotation of the ot er. a

5. In a calculating machine,a-drive-shaft adapted for longitudinal movement, a plurality of cam members mounted on said drive shaft, a tbtalizer shaft, means operated by said cam members for said to} talizer shaft in one direction upon rotation of said drive shaft when said drive shaft,

is in one longitudinalposition, and means -for moving said totalizer shaft'in another direction upon rotation of said drive shaft when said drive shaft is in another longitudinal position. a j

6. In a calculating machine, a drive shaft,

means for shifting said drive shaft longitudinally and means controlled the longitudinal movement of said aha for setting said calculating machine in adding, subtracting or non-calculating positiom '5' .7. In a calculating machine, a plurality of totalizer units, a shaft for each totalizer unit, resilient means for moving said totalizer units in unison in one direction, a drive shaft, means connected with said drive shaft for moving said totalizer units in the opposite direction, means for shifting said drive shaft longitudinall and means controlled by the longitudina movement of said drive shaft to control the direction of movement of said totalizer units upon theoperation of said calculating machine.

8. In a calculating machine, a totalizer, pinions for operating said totalizer, racks or moving said pinions, a drive shaft, means for moving said drive shaft longitudinally, and means connectin said drive shaft and said totalizer' for moving said tono i talizcr into and. out of contact with said racks controlh'd by the longitudinal movement of said drive shaft.

1 in a calculating machine. a totalizcr shaft. mcaus for shifting said totalizcr shaft in one direction to sct said calculating "HI-- chinc for adding operations. mcans for shifting said totalizcr in anothcr direction to set said calculating machine for subtracting operations, a drive shaft, means for moving said drive shaft longitudinally and means controlled by the longitudinal movement of said drive shaftto control the movement; of said totalizer.

10. A totalizer for calculating machines comprising a totalizer unit, side plates, a shaft journaled in said side plates, and carrying said totalizer unit, a shaft on which said side plates are pivotally and slidalbly mounted, andmeans for moving said side plates upon said shaft for controlling the operation of said totalizer unit.

11. In a calculating machine, a totalizer shaft, pivoted side members in which said totalizer shaft is 'ournaled, reciprocatin side members, slots. n said reciprocating si e members in which said totalizer shaft is mounted for rotation and reciprocation, and means for moving said reciprocating side members to control the direction of rotation of said totalizer shaft.

12. In a calculating machine, a totalizer unit, pivoted side members in which said totalizer unit is mounted for rotation, a lock for said totalizer unit pivotally' mounted on one of said pivoted side members, a

reciprocating member for moving said,

pivoted side members upon their pivots, and a lock oontrolli means pivotally mounted on one of said ,pivoted side members, and having sliding contact with said reciprocating member. 7

13. In a calculatingmacliine, a totalizer unit, means for shifting the axis of rotation of said 'totalizer unit in one direction 'for cont-rolling the direction of rotation of said totalizer unit, and means for shifting the axis of rotation of said totalizer unit in another direct-ion in a plane at an angle to the plane of said first-mentioned movement for prmlucing a carrying operation on said calculating machine.

14. In a calculating machine, a totalizcr uuit. a one-tooth gear carried by said totalizcr unit. a one-tooth disk adapted to cooperate with said one-tooth gear. a second totalizcr unit. and a latch for controlling the movcmcnt of said second totahzer unit adapted to be operated gear.

15. In a calculating machine, an operating rack. a tot-aiizer unit operated by said rack. and mcans separate from said totalizcr unit but controllcd thereby for arresting thcmovcnvcutof said rack when the totalizcr by said one-tooth 17. In a calculating machine, a totalizer unit, a reciprocating member for driving said unit to perform a computing operation, a device so aratc from said totahzer unit for arresting t e movement of said reciprocating member when said totalizer unit is in a predetermined position to effect a clearing operation, and means for breaking the operative connection between said reci, rocating means and said totalizcr after t e movement of said reciprocating means has been stopped to permit the restoration of' said reciprocating means to its original position without moving said totalizer unit.

18. In an automatic clearing device for a calculating machine having an operating rack, a catch for arresting the movement of said rack, and means forimoving said catch into contact with said rack for preventin operation thereofin totalizer unit operated by said rack, and means on said totalizer for controlling the operation of said rackarresting means.

19. In a calculating machine, a pluralit of totalizer units, a rackfor operating eac 1 of said totalizer units, ratchet teeth on each of said racks, ,pivotally mounted dogs adapted to coiiperatc with said ratchet teeth to arrest the movement of said racks. and means on said totaliaer units for causing the operation of said dogs when said totalizcr units arc in zero position.

20. In a calculating machine, a totalizer, an automatic clearing disk carried by said total izer. operating means for said totalizcr. and means for arresting the, movement of said operating means controlled by said automatic clearing di k but disconnected therefrom. Y

21. In a calculating lI'lflC-lllllfl. a totalizel'. an automatic clearing disk connected to said totalizer to rotate therewith. operating means for said totalizer, means controlled by said automatic clearing disk for arrcst-ing the movement of said operating means. and

means for holding said arresting means out lil said lock when the axis of rotation of said totalizcr is in one position, but permitting said lock-lo operate when the arms of rotation of tho totalizer is in said position and said totalizcr is in a predctermmed angular position.

23. In a calculating machine, a totalizer, an operating means for said totalizer, a lock for controlling the movement of said operating moans. means for preventin the pperation of said lock when said tota izer is set for subtraction and is not in zero positlon, but permitting the operation of said look when said totalizer is in zero position, and when said totalizer is in or out of zero positiou, and is set for adding or in neutral position.

2.4. In a calculating machine, the combination with automatic clearing mechanism of a shaft for controlling the operation of said automatic clearing mechanism, a lever attached to said shaft for rotating said shaft into position for. permitting the operation of said automatic clearing mechanism,

a catch on said shaft, a lock lever adapted to cooperate with said catch and hold said lever in said )osition, a drive shaft and a cam on said rive shaft for releasing said lock lever after the operation .of said automatic clearing mechanism.

25. In a calculating machine, a totalizer unit, resilient means for shifting the axis of rotation of said unit, mechanism for actuating said unit one space during said shifting movement, a catch for holding said unit against shifting movement, a second totalizer unit, and means actuated by said second unit for-releasin said "catch when said second unit passes t rough a carrying position, said releasing means being ar ranged to be moved slightly by said second unit prior to said releasing operation when said second. unit is in position to move through carrying position at the beginning of arotatiou thereof.

26. In a calculating machine, a totalizer unit, rack and pinion mechanism for oper* ating said unit, resilient means for shifting the axis of rotation of said unit to cause said unit to he moved one space by said ragk and pinion mechanism for erforming a rarr \'ing operation, a. catch or holding said rosilicnt moans against operation, a devil-c for releasing said catch, a Second totalizrr unit. and a our-toothed gear operable by said socond totalizcr unit for controlling said can-h releasing device, said gear being arranged to permit a slight movement of said second l-otalizvr unit prior to the actuation of said ratrli releasing device regardloss of the position of said second totalizer unit at tho lit-ginning of a computing operatlou.

27. In a calculating machine, a. pluralit of totalizer units, means for operating sai units in op )ositc directions for performing adding and subtracting operations, means for shifting the position of the axes of rotation of said units for performing carrying operations, and means operable by one of sand units when operating in either of said opposite directions for controlling the shiftin means of another of said units.

28. n a calculating machine, a totalizer unit,means for shifting the axis of said unit to cause the rotation of said unit throu h one laoe, mechanism for controlling t e shifting of said axis, a second totalizer unit, and means operable by said second totalizer unit when moved in either of two opposite directions for operatin said mechanism for controlling said axis shifting means.

29. In a calculating machine, computin mechanism, a main drive shaft, and two supplementary drive shafts for operatin said mechanism, and means carried by sai main drive shaft for operating said supplementary drive shafts independently and successively, said operating means belng inoperative to drive one of said shafts until the operation of the other of said shafts is completed.

'-30. In a calculating machine, computing mechanism, a main drive shaft, and a pair of supplementary drive shafts for operating said mechanism, and mechanism carried by said main drive shaft for rotatin said suplementar drive shafts successively, said astname mechanism bein inoperative to rotate one of said'shafts until the movement for rotating the other of said shafts has been completed.

31. In' a calculating machine, computing inechanism, a main drive shaft, and a pair of supplementary drive shafts for operating s'aid mechanism, and mechanism comprisin a handle carried b said main drive sha t for rotating sai sup lementary drive shafts independently and sueeessivel the rotation of said supplen'lentary sha ts occurring during one stroke of said handle and the rotation of the other of said supplementaryshafts occurring during the second stroke of said handle, said last-named mechanism being inoperative during the second stroke of said handle if the first stroke of said handle has not been previously completed.

in testimony whereof I huve'signed my name to this specification, in the presence of two subscribing witnesses, oni'his 5th day of January, A. l). 1915.

' OTTO MALCHER. 'itncsses A. J. CRANE, ,HEIIOMAS COLSON. 

